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Pedestrians' big debut in traffic simulation - PTV America

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Traffic / <strong>PTV</strong> AG<br />

Committed to Improv<strong>in</strong>g Traffic Safety<br />

Despite the fact that the number of road accident<br />

victims has decreased <strong>in</strong> the European Union, it<br />

seems to be difficult to reach EU’s target of halv<strong>in</strong>g<br />

the number of road deaths by 2010. There are still<br />

too many car accident fatalities. It is therefore essential<br />

to <strong>in</strong>clude <strong>traffic</strong> safety concepts <strong>in</strong> the <strong>traffic</strong> and<br />

transportation plann<strong>in</strong>g process. <strong>PTV</strong>’s transportation<br />

experts have developed a specific tool which contributes<br />

to road safety by provid<strong>in</strong>g important analysis<br />

data on Germany’s road network.<br />

Build<strong>in</strong>g safe roads is another relevant road safety factor.<br />

This <strong>in</strong>cludes the construction, expansion and improvement<br />

of roads. The first step is to identify the size and<br />

distribution of safety potential with<strong>in</strong> the road network.<br />

Germany’s Road Traffic Research Association issued a new<br />

directive called Empfehlungen für die Sicherheitsanalyse<br />

von Straßennetzen, which provides recommendations<br />

for the safety analysis of road networks.<br />

The ESN directive provides guidel<strong>in</strong>es and calcula-<br />

tion rules for estimat<strong>in</strong>g the road safety performance.<br />

It helps the road construction authority identify road<br />

sections which need to be analysed <strong>in</strong> detail and<br />

which can be considerably improved. German Insurers<br />

Accident Research (GDV) asked <strong>PTV</strong> to develop a specific<br />

ESN tool as part of a road accident research project.<br />

The aim was to provide pragmatic methods for<br />

an efficient analysis of the huge amount of data. The<br />

recommendations were applied to the state of Saxony,<br />

Germany.<br />

A numerical safety potential is determ<strong>in</strong>ed on the basis<br />

of road accident data (categories, location, types of accidents,<br />

time and date, etc.) and empirically developed<br />

accident <strong>in</strong>dicators, such as accident rates and average<br />

accident costs. Traffic eng<strong>in</strong>eer<strong>in</strong>g tools, i.e. specific<br />

plann<strong>in</strong>g tools for network analysis and accident data<br />

analysis are comb<strong>in</strong>ed to make road networks safer.<br />

Information about the average workday <strong>traffic</strong> volume<br />

on the roads where accidents occurred is an important<br />

factor for the ESN calculations. Therefore, <strong>PTV</strong>’s<br />

Validate transportation model for Germany was <strong>in</strong>tegrated<br />

<strong>in</strong>to the ESN calculation process to provide<br />

workday <strong>traffic</strong> volumes for the entire ma<strong>in</strong> road network<br />

of Germany.<br />

The ESN tool processes the data and visualises the re-<br />

sults <strong>in</strong> a clear and efficient manner. Easy and exact<br />

results analysis and high quality evaluations pro-<br />

vide immediate access to network-related <strong>in</strong>formation<br />

about the accident.<br />

ESN – display of results based on road sections<br />

comb<strong>in</strong>ed with NAVTEQ road sections<br />

<strong>PTV</strong> tool helps create<br />

safer road networks<br />

TRAFFIC – NEWS<br />

COMPASS INTERNATIONAL 01/2008 09

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